<template>
 <view>
   <view class="search-box">
     <my-search @click="gotoSearch"></my-search>
   </view>
   
   <view>
     <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
       <swiper-item v-for="(swiper,key,index) in swiperList" :key="index">
         <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + swiper.goods_id">
           <image :src="swiper.image_src"></image>
         </navigator>
       </swiper-item>
     </swiper>
   </view>
   
   <view class="nav-list">
      <view class="nav-item" v-for="(item, i) in navList" :key="i" @click="navClickHandler(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
   </view>
   
   <view class="floor-list">
     <!-- 楼层 item 项 -->
     <view class="floor-item" v-for="(item, i) in floorList" :key="i">
       <!-- 楼层标题 -->
       <image :src="item.floor_title.image_src" class="floor-title"></image>
   <view class="floor-img-box">
     <!-- 左侧大图片的盒子 -->
     <navigator class="left-img-box" :url="item.product_list[0].url">
       <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
     </navigator>
     <!-- 右侧 4 个小图片的盒子 -->
     <view class="right-img-box">
       <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
         <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
       </navigator>
     </view>
   </view>
     </view>
   </view>
   
 </view>
</template>

<script>
  export default {
    data() {
      return {
        swiperList:[],
        navList:[],
        floorList:[]
      };
    },
    
    onLoad(){
      this.getSwiperList()
      this.getNavList()
      this.getFloorList()
    },
    
    methods:{
      async getSwiperList(){
        const {data:res} = await uni.$http.get("/api/public/v1/home/swiperdata")
        if(res.meta.status != 200) return uni.$showMsg()
          this.swiperList = res.message
      },
      
      async getNavList(){
        const {data:res} =await uni.$http.get("/api/public/v1/home/catitems")
        if(res.meta.status != 200) return uni.$showMsg()
        this.navList = res.message
      },
      
      async getFloorList(){
        const {data:res} =await uni.$http.get("/api/public/v1/home/floordata")
        if(res.meta.status != 200) return uni.$showMsg()
        
        res.message.forEach(floor => {
            floor.product_list.forEach(prod => {
              prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
            })
          })
        
        this.floorList = res.message
      },
      
      // nav-item 项被点击时候的事件处理函数
      navClickHandler(item) {
        // 判断点击的是哪个 nav
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
        
      }

    }
    
  }
</script>

<style lang="scss" scoped>
  swiper {
   height: 330rpx;
  
   .swiper-item,
   image {
     width: 100%;
     height: 100%;
   }
  }
  
  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 15px 0;
  
    .nav-img {
      width: 128rpx;
      height: 140rpx;
    }
  }
  
  .floor-title {
    height: 60rpx;
    width: 100%;
    display: flex;
  }

  .right-img-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
  
  .floor-img-box {
    display: flex;
    padding-left: 10rpx;
  }
  
  .search-box {
    // 设置定位效果为“吸顶”
    position: sticky;
    // 吸顶的“位置”
    top: 0;
    // 提高层级，防止被轮播图覆盖
    z-index: 999;
  }


</style>
